کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
750615 1462075 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Lithographically patterned molecularly imprinted polymer for gravimetric detection of trace atrazine
ترجمه فارسی عنوان
پلیمر مشتق شده از لحاظ الگوی شیمیایی برای تشخیص گراویت سنجی آترازین ردیابی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی

In this paper, we examined a novel molecularly imprinted polymer (MIP) patterned matrix, consisting of methacrylic acid (MAA) and ethylene glycol dimethacrylate (EGDMA) as functional and cross-linking monomers, respectively, for detection of trace atrazine in an aqueous solution. A solvent assisted soft lithography and UV-initiated polymerization were used to develop striped poly(MAA-EGDMA) patterns. In comparison to a planar MIP film (Δfp-MIP = −158 Hz), the striped patterns showed faster sensing response (Δfs-MIP = −269 Hz) for the 30 min detection period due to the relatively increased binding sites generated from the MIP stripes. Furthermore, the sensitivity of the MIP sensor was found to be −9.98 Hz (μM)−1 via gravimetric quartz crystal microbalance (QCM) measurements and the selectivity of the MIP stripes was evaluated through sensing characteristics of other herbicides. Thus, a control of binding sites via this lithographic technique could contribute to the development of efficient MIP sensing platforms.

Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Sensors and Actuators B: Chemical - Volume 216, September 2015, Pages 476–481
نویسندگان
, , , ,